Street marker



March 6,1928,- 1,661,870

7 l L. F. N. BALDWIN I STREET MARKER Filed July 12, 1926 I N VEN TOR.

TORNEYS.

Patented Mar. 6, 19 28.

um'rsn .srATa-s i I 1,661,87t)

rams?!" 'LEON F. N. BALDWIN, OF EDGE WO'OD, R;HODE ISLAND, ,ASSIGNOR ,OF ON'EJIALF 1T0 BENJAMINS. 'GLARK, OF *BROVIIDENGE, RHODE ISLAND.

-:STREET MARKER.

Applicatiomfiledqlul? 512, 1926. Serial No. 121,903.

This 1 invention relatesto aniin'iproved construction of street marker; and has for its object to provide a marker of thisicharacter formed of a-platc provided with a'ealtwardlv 5 extending prongs adapted to be driven into the material of a roadbcd and set spaced from each other along a ,line toidirect both pedestrian and vehicular traffic.

A further object of ;the invention is to 1 form the prongs tapering substantially :to a point, one side edge of .each ,prong being notched to render its contacting are-a less than that of its opposite edgie whereby when driven into the material of the roadbcd Qit has a tendency to rotate and so force it-he material of the roadbed into :the crotch jtO assist indocking the platein set position.

A still further object of :the inventiqn zlS the-oflsetting of the-stock of. one of theedges ofthe notches to form a sbitlb 1or-projection to clinch and lock the marker when its prongs are driven into the roadbetl.

invention consists of certain znovel cfeatures of construction, as will be more 'efu'lly described, and particularly pointed tout in {the appended claims.

In the accompanying drawings:

Figure 1 is a perspective view illustrating one form of my improved marker with a marginal flange and rearwardly-turned prongs.

Figure 2 is a sectional View through the marker plate Figure 3 is an enlarged view illustrating one of the prongs as having been driven into the material of the roadbed and as having moved laterally to force the stock of the roadbed into the notch on the edge of the prong to lock the same in position.

Figure 4 is a modified construction showing the prongs on the corners of a rectangular blank.

Figure 5 shows the prongs on the margin al edges of the blank as turned rearwardly to be driven into the material of the roadbed.

It is found in the use of street markers which are provided with prongs to be driven into the material of a roaidbed, necessary to provide some means for locking these prongs in the roadbed so as to prevent the markers from becoming loosened due to action of the traflic thereover and from being lifted from their positions which would render them unfit for such service, and to accomplish this assists in locking the plate in set position.

In some cases I may form the prongs from the stock of the plate within the margin thereof, as illustrated in Figures 1,12 and 3, while in other cases "I may :form zthe plate from a blank of rectangular shape, and cut the corners-of the blank so as to formprongs of 'the desired shape, .and then :fold :these prong-shaped corners reainvardly to the driven :into ,t-he material of ethe roadbed which is usually of :asphalt and :which ma terial has:been previously softened somewhat by the application of heatfrom a iblow torch orother.heatingdevice; and the following is .a:-detailed (lQSGllPlJlOIlaOI thepresont embodiment of my invention to show on .struction of marker whereby these advantageous results may be accomplished l/Vith reference to the drawings, 10 designates the body of the marker plate which as illustrated in Figure 1 may be cut from a rectangulardisc having its marginal edge 11 turned or folded o extend rearwardly.

Within the margin of this'plate, I have I cut and formed a plurality of prongs 12,

each being tapered preferably substantially to a point or other shape to bereadily driven into the material of the roadbed. One side edge 13 of eachprong is preferably notched as at 14: or has a portion removed therefrom .so that the contacting areaof this edge is less than that of the material of the roadbed the plate has a tendency to rotate slightly causing the stock of the roadbed to be forced into the notch 14 and so assist in locking the .terial into the notches of :the gprongs, which 4, in which the corners of the plate are cut to form projecting prongs 16, one side of; each prong being notched as at 17 so that when folded rearwardly into position illustrated in Figure 5 they produce the same rotating effect on the plate as above tit" scribed forcing the material of the roadbed i into the notches 17 to assist in locking the plate in position therein.

In my improved form of marking plate, I have turned the marginal edges of the blank rearwardly so that this edge may be driven or forced into the face of the material of the roadbed to exclude foreign matter from working beneath the plate, which would tend to lift or loosen it from its set position. In some instances, I may also emboss or 'a-ise portions of the plate to form certain figures thereon which will more quickly catch the eye of the pedestrian and render the marker more attractive and efiective.

My improved marker is very simple and practical in construction and arch plate may be formed complete from a single blank of sheet stock with a marginal flange and rearwardly projecting prongs, the prongs being also provided with some suitable locking means-which will firmly retain the plate in position against action of the tratiic-thereover. The foregoin description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. A street marker formed of a plate of sheet stock having a plurality of rearwardly extending prongs. the side edges of said prongs being tapered toward its end. one side edge of each pron; being notched to render its contacting area less than that of its opposite edge whereby when driven into the material otthe roadbed the plate has a tendency to rotate and force the roadbed material into said notch to assist in locking the plate in set position.

2. A street marker formed of a plate of sheet stock having a l'(':ll\\'ill'lll \'l urned marginal flange and a plurality oi. rearn'ardlyextending prongs the side edges of said prongs being tapered substantially to a point, one side edge of each prong being notched to render its contmding area less than that. of the opposite side, and the stock at one of the edges ofthe notch being oil'set to form a retaining barb.

3. A street marker formed of a plate of sheet stock having a rearwardly-turncd marginal flange and a plurality of tapering prongs out from the stock of the plate within the margin and folded to extend rearwardly therefrom, one of the side edges of each prong being notched to reduce its contacting areato be less than that of its opposite. edge whereby when driven into the material of the roadbed the plate has a tendency to rotate and force the roadbed material into said notch to assist in locking the plate in set position. i y

In testimony whereof I atlix my signature.

LEON N. BALDWIN. 

